strategy can be
implemented at three different levels:
Business unit level, and
Functional or departmental level.
At the corporate level, you are responsible for
through your businesses. You do so by managing your portfolio of businesses,
ensuring that your businesses are successful over the long term, developing
business units, and sometimes ensuring that each business is compatible with
others in your portfolio.
Products and services are developed by
business units. The role of the corporation is to manage its business
units, products and services so that each is competitive and so that each
contributes to corporate purposes.